MOTS c, the Most Recent Mitochondrial Derived Peptide in Human Aging and Age Related Diseases GHK Cu Peptide: What It Does for Body Composition and Metabolic Health GHK Cu vs NAD+: Which Longevity Peptide Should You Take or Stack? If your GHK Cu or MOTS C injection leaves welts and burns like a hornet, it's usually not the peptide it's the technique. A few small tweaks can turn a sting into almost